note
	description: "Serialize and deserialize multiple objects into one file."
	legal: "See notice at end of class."
	status: "See notice at end of class."
	date: "$Date: 2017-03-23 19:18:26 +0000 (Thu, 23 Mar 2017) $"
	revision: "$Revision: 100033 $"

class interface
	SED_MULTI_OBJECT_SERIALIZATION

create 
	default_create

feature -- Access

	deserialized_object: detachable ANY
			-- Last deserialized object

	last_file_position: INTEGER_32
			-- Position after last serialization

	error_message: STRING_32
			-- Reason for failure
	
feature -- Status report

	successful: BOOLEAN
			-- Was last retrieval successful?
	
feature -- Basic Operations

	deserialize (path: READABLE_STRING_GENERAL; a_pos: INTEGER_32)
			-- Deserialize object previously serialized in path at position a_pos.
		require
			non_void_path: path /= Void
			valid_path: (create {RAW_FILE}.make_with_name (path)).exists
		ensure
			deserialized_object_set_if_no_error: successful implies deserialized_object /= Void

	serialize (a: ANY; path: READABLE_STRING_GENERAL; is_appending: BOOLEAN)
			-- Serialize object a at the end of file path if is_appending, otherwise
			-- reset content of path.
			-- Set last_file_position after storing.
		require
			non_void_object: a /= Void
			non_void_path: path /= Void
	
note
	library: "EiffelBase: Library of reusable components for Eiffel."
	copyright: "Copyright (c) 1984-2017, Eiffel Software and others"
	license: "Eiffel Forum License v2 (see http://www.eiffel.com/licensing/forum.txt)"
	source: "[
		Eiffel Software
		5949 Hollister Ave., Goleta, CA 93117 USA
		Telephone 805-685-1006, Fax 805-685-6869
		Website http://www.eiffel.com
		Customer support http://support.eiffel.com
	]"

end -- class SED_MULTI_OBJECT_SERIALIZATION

Generated by ISE EiffelStudio